Summary Of Significant Accounting Policies (Summary Of Net Revenues By Product Category) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Summary Of Significant Accounting Policies
Respiratory and other chronic therapies	$ 423,886	$ 371,207	$ 1,212,928	$ 1,111,069
DME, infusion and enteral therapies	50,872	47,466	142,430	136,010
Total	$ 474,758	$ 418,673	$ 1,355,358	$ 1,247,079